function addLoadEvent(func) {
  var oldonload = window.onload;
  if (typeof window.onload != 'function') {
    window.onload = func;
  } else {
    window.onload = function() {
      oldonload();
      func();
    }
  }
}

function addClass(element,value) {
  if (!element.className) {
    element.className = value;
  } else {
    newClassName = element.className;
    newClassName+= " ";
    newClassName+= value;
    element.className = newClassName;
  }
}


//function stripeTables() {
//	var tbodies = document.getElementsByTagName("tbody");
//	for (var i=0; i<tbodies.length; i++) {
//		var odd = true;
//		var rows = tbodies[i].getElementsByTagName("tr");
//		for (var j=0; j<rows.length; j++) {
//			if (odd == false) {
//				odd = true;
//			} else {
//				addClass(rows[j],"odd");
//				odd = false;
//			}
//		}
//	}
//}

function highlightRows() {
  if(!document.getElementsByTagName) return false;
  var tbodies = document.getElementsByTagName("table");
  for (var j=0; j<tbodies.length; j++) {
		  var rows = tbodies[j].getElementsByTagName("tr");
		  for (var i=0; i<rows.length; i++) {
				rows[i].oldClassName = rows[i].className
				rows[i].onmouseover = function() {
				  addClass(this,"highlight");
				}
				rows[i].onmouseout = function() {
				  this.className = this.oldClassName
				}
		}
	}
}

//addLoadEvent(stripeTables);
addLoadEvent(highlightRows);